This is the Konami Game Boy game "Kinniku Banzuke" (Muscle Ranking). Since I played this a long time ago, the data is as it was back then. I haven't been able to confirm that it works, so I'll only sell it to those who understand. No claims and no returns, please. - Brand: Konami - Model Name: Game Boy Game - Title: Kinniku Banzuke - Country of Manufacture: Japan Thank you for looking.